| 787 | 6 | 7 |
| Downloads | Citas | Reads |
Yani wetland in Xizang is a typical plateau river wetland, playing a crucial role in maintaining the stability of the local ecological environment and protecting species diversity. In this study, we evaluated the water quality status of Yani wetland and analyzed pollution sources, aiming to provide a scientific basis for environmental monitoring and conservation of Yani wetland. This study is based on nine physicochemical indicators determined in 58 water samples collected in the Yani wetland in May 2023, during the normal water period. The comprehensive trophic level index(TLI), comprehensive pollution index and comprehensive water quality index(WQI) were used to evaluate the water quality status and trophic level of target water bodies in the wetland. Principal component analysis(PCA) and absolute principal components-multiple linear regression(APCS-MLR) were used to analyze water quality characteristics and pollution sources of Yani wetland. Results show that:(1) The total phosphorus(TP), ammonia nitrogen(NH3-N) and chemical oxygen demand(COD) in Yani wetland waters all met Class I water quality standards according to Environmental Quality Standard for Surface Water, and total nitrogen(TN) met the Class II water quality standard, indicating overall good water quality in the wetland. The wetland TLI was 36.88, indicating a mesotrophic state. The comprehensive pollution index was 0.74, indicating light pollution, and the pollution sharing rate of TN and TP values was >60%, indicating that TN and TP were the main pollutants of wetland water bodies. The WQI was also generally good.(2) PCA results show that the cumulative contribution of the first four factors was 82.497%. The first principal component(PC1)was presumed to be natural sources, and the second principal component(PC2) was presumed to be agricultural crop sources. The third principal component(PC3) was inferred to be agricultural livestock and poultry breeding sources, and the fourth principal component(PC4) was inferred to be the source of algal blooms. According to the principal component/composite principal component score, water quality of Yani wetland was better in the upper reaches than in the middle and lower reaches.(3) The results of APCS-MLR model show that the contribution of natural sources to the pollutant load of Yani wetland was31.64%, the contribution rate of unknown sources was 30.47%, and the contribution rate of livestock and poultry breeding and agricultural mixed sources was 23.30%. The main pollution sources of TN, TP and NH3-N were runoff from farmland fertilizer application and high-density livestock operations. In the future, water quality protection and management should be prioritized in Yani wetland and control of agricultural non-point pollution from fertilizers and animal husbandry should be strengthened.
陈锋,孟凡生,王业耀,等,2016.多元统计模型在水环境污染物源解析中的应用[J].人民黄河,38(1):79-84.CHEN F,MENG F S,WANG Y Y,et al,2016.Application of multivariate statistical analysis in the source apportionment of surface water[J].Yellow River,38(1):79-84.
陈丽华,喻记新,李丽,等,2018.基于TLI和PCA的贵州草海水质状况评价[J].长江科学院院报,35(8):40-45.CHEN L H,YU J X,LI L,et al,2018.Water quality assessment of Caohai Lake in Guizhou based on trophic state index and principal component analysis[J].Journal of Yangtze River Scientific Research Institute,35(8):40-45.
高海涛,2023.拉萨河下游湿地水环境理化特性及污染风险评价[D].拉萨:西藏大学.
顾城天,罗彬,王恒,等,2020.若尔盖高原湿地水质演变特征及氮磷累积效应[J].水土保持研究,27(4):47-53.GU C T,LUO B,WANG H,et al,2020.Water quality evolution and effect of nitrogen and phosphorus accumulation in wetland of Ruoergai Plateau[J].Research of Soil and Water Conservation,27(4):47-53.
郝萌,闫祯,黄一恒,等,2023.延安市集中式饮用水水源地水质评价[J].农业现代化研究,44(4):736-744.HAO M,YAN Z,HUANG Y H,et al,2023.Water quality evaluation of centralized drinking water sources in Yan'an City[J].Research of Agricultural Modernization,44(4):736-744.
郝守宁,付意成,2017.林芝市农业面源污染负荷时空变化与分布特征[J].农业环境科学学报,36(7):1308-1315.HAO S N,FU Y C,2017.Spatio-temporal changes and distribution characteristics of pollutant loads from agricultural non-point sources in Nyingchi,Tibet[J].Journal of AgroEnvironment Science,36(7):1308-1315.
郝守宁,白庆芹,张志伟,等,2018.林芝市农业面源污染排放特征解析[J].灌溉排水学报,37(8):115-120.
何利聪,王东伟,张敏莹,等,2024.淮河中游叶绿素a的时空分布特征及富营养化评价[J].大连海洋大学学报,39(1):114-123.HE L C,WANG D W,ZHANG M Y,et al,2024.Spatial and temporal distribution of chlorophyll a concentration and eutrophication evaluation in the middle reaches of Huaihe River[J].Journal of Dalian Ocean University,39(1):114-123.
后希康,张凯,段平洲,等,2021.基于APCS-MLR模型的沱河流域污染来源解析[J].环境科学研究,34(10):2350-2357.HOU X K,ZHANG K,DUAN P Z,et al,2021.Pollution source apportionment of Tuohe River based on absolute principal component score-multiple linear regression[J].Research of Environmental Sciences,34(10):2350-2357.
黄燏,阙思思,罗晗郁,等,2023.长江流域重点断面水质时空变异特征及污染源解析[J].环境工程学报,17(8):2468-2483.HUANG Y,QUE S S,LUO H Y,et al,2023.Spatial and temporal variability of water quality at key cross-sections in the Yangtze River Basin and analysis of pollution sources[J].Chinese Journal of Environmental Engineering,17(8):2468-2483.
霍明珠,2021.基于APCS-MLR的农田重金属污染源解析[D].北京:中国农业科学院.
金相灿,屠清瑛,1990.湖泊富营养化调查规范[M].第2版.北京：中国环境科学出版社.
李慧,雷沛,李珣,等,2021.天津市北大港湿地沉积物氮磷分布特征及污染评价[J].环境科学学报,41(10):4086-4096.LI H,LEI P,LI X,et al,2021.Distribution characteristics and pollution assessment of nitrogen and phosphorus in sediments from Beidagang Wetland in Tianjin City[J].Acta Scientiae Circumstantiae,41(10):4086-4096.
李军,刘丛强,岳甫均,等,2010.天津地区地表水咸化的水化学证据[J].环境化学,29(2):285-289.LI J,LIU C Q,YUE F J,et al,2010.Hydrochemical evidence of surface water salinization process in the Tianjin coastal plain,China[J].Environmental Chemistry,29(2):285-289.
李宁云,2006.纳帕海湿地生态系统退化评价指标体系研究[D].昆明：西南林学院.
凌智永,2022.雅鲁藏布江流域晚第四纪黄土沉积与环境演变[D].兰州:兰州大学.
刘倩,赵娥,王克焕,等,2022.青藏高原天然湿地水环境特征和水质净化能力分析[J].水生生物学报,46(12):1797-1806.LIU Q,ZHAO E,WANG K H,et al,2022.Water environment characteristics and water purification capacity of natural wetlands in the Qinghai-Tibet plateau[J].Acta Hydrobiologica Sinica,46(12):1797-1806.
路璐,赵元艺,柳建平,等,2014.江西德兴铜矿区大坞河流域环境介质中Cu含量变化趋势[J].地质通报,33(8):1205-1212.LU L,ZHAO Y Y,LIU J P,et al,2014.Trend analysis of Cu contamination in environmental media of the Dawu River in the Dexing copper mine,Jiangxi Province[J].Geological Bulletin of China,33(8):1205-1212.
卢少勇,张萍,潘成荣,等,2017.洞庭湖农业面源污染排放特征及控制对策研究[J].中国环境科学,37(6):2278-2286.LU S Y,ZHANG P,PAN C R,et al,2017.Agricultural nonpoint source pollution discharge characteristic and its control measures of Dongtinghu Lake[J].China Environmental Science,37(6):2278-2286.
卢思,2009.公路建设对高原湿地生态系统健康影响的研究:以拖乌山湿地系统为例[D].雅安:四川农业大学.
罗桂林,田林锋,2021.基于WQI法的宁夏湖泊藻类暴发过程水环境质量变化及溯源探究[J].环境化学,40(7):2073-2082.LUO G L,TIAN L F,2021.Study on water environmental quality change and source tracing of algae bloom in lakes of Ningxia based on WQI method[J].Environmental Chemistry,40(7):2073-2082.
莽杨丹,薛会英,罗大庆,等,2019.雅尼湿地公园不同功能区土壤线虫群落结构特征[J].高原农业,3(4):399-406.
彭红霞,侯清芹,曾敏,等,2021.雷州半岛地下水化学特征及控制因素分析[J].环境科学,42(11):5375-5383.PENG H X,HOU Q Q,ZENG M,et al,2021.Hydrochemical characteristics and controlling factors of groundwater in the Leizhou Peninsula[J].Environmental Science,42(11):5375-5383.
任培,2021.拉萨河流域农用地土壤重金属污染现状调查分析[D].拉萨：西藏大学.
师环环,潘羽杰,曾敏,等,2021.雷州半岛地下水重金属来源解析及健康风险评价[J].环境科学,42(9):4246-4256.SHI H H,PAN Y J,ZENG M,et al,2021.Source analysis and health risk assessment of heavy metals in Groundwater of Leizhou Peninsula[J].Environmental Science,42(9):4246-4256.
舒远琴,宋维峰,2020.我国湿地生态系统健康评价研究进展[J].亚热带水土保持,32(2):21-25.
孙凯歌,2023.西藏雅尼国家湿地公园生态监测分析[D].林芝：西藏农牧学院.
孙婷婷,涂耀仁,罗鹏程,等,2023.2008-2022年上海大莲湖湿地营养盐时空分布特征、水质评价及来源解析[J].湖泊科学,35(3):886-901.SUN T T,TU Y R,LUO P C,et al,2023.Temporal-spatial distributions,water quality evaluation,and source identifications of nutrients in Lake Dalian wetland,Shanghai,2008-2022[J].Journal of Lake Sciences,35(3):886-901.
王林,王祥,周超,等,2023.连云港主要入海河流叶绿素a及综合营养状态指数遥感定量反演[J].光谱学与光谱分析,43(10):3314-3320.WANG L,WANG X,ZHOU C,et al,2023.Remote sensing quantitative retrieval of chlorophyll a and trophic level index in main seagoing rivers of Lianyungang[J].Spectroscopy and Spectral Analysis,43(10):3314-3320.
王美华,2023.PCA-APCS-MLR和地统计学的典型农田土壤重金属来源解析[J].环境科学,44(6):3509-3519.WANG M H,2023.Source analysis of heavy metals in typical farmland soils based on PCA-APCS-MLR and geostatistics[J].Environmental Science,44(6):3509-3519.
王明翠,刘雪芹,张建辉,2002.湖泊富营养化评价方法及分级标准[J].中国环境监测,(5):47-49.WANG M C,LIU X Q,ZHANG J H,et al,2002.Evaluate method and classification standard on lake eutrophication[J].Environmental Monitoring in China,(5):47-49.
王顺天,雷俊山,贾海燕,等,2020.三峡水库2003-2017年水质变化特征及成因分析[J].人民长江,51(10):47-53.WANG S T,LEI J S,JIA H Y,et al,2020.Water quality characteristics and causes analysis of Three Gorges Reservoir from 2003 to 2017[J].Yangtze River,51(10):47-53.
王在峰,张水燕,张怀成,等,2015.水质模型与CMB相耦合的河流污染源源解析技术[J].环境工程,33(2):135-139.
谢经朝,赵秀兰,何丙辉,等,2019.汉丰湖流域农业面源污染氮磷排放特征分析[J].环境科学,40(4):1760-1769.XIE J Z,ZHAO X L,HE B H,et al,2019.Analysis of the characteristics of nitrogen and phosphorus emissions from agricultural non-point sources on Hanfeng Lake Basin[J].Environmental Science,40(4):1760-1769.
谢鹏程,曾馨蓉,熊健,等,2023.巴嘎雪湿地水环境质量分析研究[J].化工管理,(26):44-47.
许生军,2024.基于生态安全的流域水污染综合整治应用探讨[J].能源与环境,(2):128-130.
张文博,余香英,薛弘涛,等,2024.基于APCS-MLR模型的九洲江广东段不同水期水质变化特征及污染来源解析[J].农业环境科学学报,43(2):401-410.ZHANG W B,YU X Y,XUE H T,et al,2024.Characteristics of water quality and pollution source apportionment in wet season and dry season based on absolute principal component score-multiple linear regression in Guangdong section of Jiuzhou River[J].Journal of Agro-Environment Science,43(2):401-410.
赵文涛,2021.西藏雅尼国家湿地公园景观健康评价[D].拉萨：西藏大学.
钟颖,2019.绵远河水体富营养化成因与磷来源识别[D].成都：成都理工大学.
周建华,李晓伟,陈锋,2020.污染物源解析技术正定矩阵因子分析法的现状研究[J].北华航天工业学院学报,30(4):10-12.
周铭浩,李彤,林学明,等,2023.北江干流及主要支流水质及其时空变化特征[J].水土保持通报,43(5):111-120.ZHOU M H,LI T,LIN X M,et al,2023.Water quality and spatial-temporal variation characteristics from main stream and main tributaries of North River[J].Bulletin of Soil and Water Conservation,43(5):111-120.
AN R Z,LIU Y,PAN C M,et al,2023.Water quality determines protist taxonomic and functional group composition in a high-altitude wetland of international importance[J].Science of the Total Environment,880:163308.
HAJI GHOLIZADEH M,MELESSE A M,REDDI L,2016.Water quality assessment and apportionment of pollution sources using APCS-MLR and PMF receptor modeling techniques in three major rivers of South Florida[J].Science of the Total Environment,566:1552-1567.
HU S J,NIU Z G,CHEN Y F,et al,2017.Global wetlands:potential distribution,wetland loss,and status[J].Science of the Total Environment,586:319-327.
JAVAID M,SHAFI A,HAMID A,et al,2023.Dynamics of the wetland ecosystem health in urban and rural settings in high altitude ecoregion[J].Science of the Total Environment,904:166566.
LAU A K,YUAN Z,YU J Z,et al,2010.Source apportionment of ambient volatile organic compounds in Hong Kong[J].Science of the Total Environment,408(19):4138-4149.
LI D,TIAN P P,LUO H Y,et al,2020.Impacts of land use and land cover changes on regional climate in the Lhasa River basin,Tibetan Plateau[J].Science of the Total Environment,742:140570.
WANG J Q,SUI Q,LYU S G,et al,2020.Source apportionment of phenolic compounds based on a simultaneous monitoring of surface water and emission sources:a case study in a typical region adjacent to Taihu Lake watershed[J].Science of the Total Environment,722:137946.
WU Z S,WANG X L,CHEN Y W,et al,2018.Assessing river water quality using water quality index in Lake Taihu Basin,China[J].Science of the Total Environment,612:914-922.
ZHANG Y,WANG G X,WANG Y B,2011.Changes in alpine wetland ecosystems of the Qinghai-Tibetan Plateau from1967 to 2004[J].Environmental Monitoring and Assessment,180(1):189-199.
ZHOU F,HUANG G H,GUO H,et al,2007.Spatio-temporal patterns and source apportionment of coastal water pollution in eastern Hong Kong[J].Water Research,41(15):3429-3439.
Basic Information:
DOI：10.15928/j.1674-3075.202404160132
China Classification Code:X824;X52
Citation Information:
[1]LI Wei,YANG Jueyuan,XIONG Jian ,et al.Water Quality Evaluation and Pollution Source Analysis of Yani Wetland in Xizang[J].Journal of Hydroecology,2025,46(04):119-131.DOI:10.15928/j.1674-3075.202404160132.
Fund Information:
西藏自治区自然科学基金（XZ202401ZR0035）; 中央支持地方高校专项资金（藏财预指[2024]01[,2025]01）; 西藏大学人才发展激励计划-青年学者项目资助
2024-07-30
2024-07-30
2024-07-30